OEM-Compatible Fit: Direct replacement for MasterCraft part number 554970, used in the tower breakaway assembly where the upper hoop meets the front tower leg. Featured on X-Series boats from 2007 to 2011, including X-1, X-2, X-7, X-9, X-15, X-25, X-30, X-35, X-45, X-55, X-80, and X-Star. 

Precision Machined Construction: CNC-machined from corrosion-resistant materials to meet OEM tolerances and ensure long-term mechanical reliability in marine environments.

Integrated Delrin Insert: Built-in Delrin insert provides smooth thread engagement, reduces friction, and prevents damage to aluminum clamshell components over time.

Ergonomic Grip Design: Shaped for secure, tool-free hand tightening and easy adjustment, even in wet conditions.

Drop-In Installation: Installs directly onto the fixed stainless-steel stud with no modifications required; caution recommended during removal to prevent accidental loss overboard.

This replacement knob is a direct-fit substitute for MasterCraft part number 554970, used in the tower breakaway assembly where the upper tower hoop connects to the front tower leg. It secures the two aluminum clamshell components at this junction and threads onto a fixed stainless-steel stud. If unthreaded too far, the knob can fully disengage and may fall into the water, so caution is advised during removal. Featured on X-Series boats from 2007 to 2011, this knob is compatible with models including the X-1, X-2, X-7, X-9, X-15, X-25, X-30, X-35, X-45, X-55, X-80, and X-Star. Manufactured to match OEM specifications, the knob is CNC-machined from corrosion-resistant materials for long-term durability in marine environments. It includes an integrated Delrin insert, which provides smooth thread engagement, reduces friction, and minimizes wear during repeated use. The ergonomic grip design allows secure, tool-free tightening and adjustment by hand. Installation is fully drop-in, requiring no modification to existing hardware. This component is ideal for replacing worn or missing tower hardware and restoring original clamping force and mechanical safety to the breakaway system.